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Archives :: Processing & Handling :: Liquid, Gas and Air Handling

Displaying 61 - 80 of 795 stories.
April 1, 2013
Avoid pipe corrosion with this spacer Trelleborg Group Flexspacer has been developed to effectively create an air gap between topside pipelines and thermal insulation, thereby avoiding the corrosion that can occur when using traditional insulation systems such as mineral wool. By stopping direct contact between the insulation and the pipe, Flexspacer prevents any damage to the corrosion protection on the...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/seals_gaskets_and_packing_materials/Focus-on-Seals-and-Gaskets_10381.html
April 1, 2013
Promation Engineering Designed for use on rising-stem globe control valves, the PL Series actuators (photo) provide up to 4,400 lb of force and up to 3.9 in. of travel. This increased up-and-down force, the company says...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/These-actuators-are-designed-for-large-pressures_10385.html
April 1, 2013
What if someone were to tell you that there is one method available for sizing relief valves that applies to virtually every situation, including two-phase flow and supercritical fluids? And what if they told you that method is more accurate and easier to use than traditional methods or formulas? As it turns out, both of these statements are true. The approach described here — the Direct Integration...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/The-Direct-Integration-Method-A-Best-Practice-for-Relief-Valve-Sizing_10394.html
March 1, 2013
To realize the best possible thermal efficiency, gas turbines should be integrated into chemical process industries (CPI) plants, but doing so can be difficult and requires special consideration. Specifically, in some CPI units, while the turbine’s shaft is driving an equipment component (such as a compressor), the hot exhaust gas from the gas turbine can be connected to furnace burners or...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/compressors/Integrating-Gas-Turbines-Into-CPI-Facilities_10295.html
March 1, 2013
Coolant circuits must dissipate heat from applications such as welding or power-electronics installations. This requires high flowrates within a compact space. This company...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/piping_and_tubing/New-coolant-connections-for-high-flowrate-applications_10283.html
March 1, 2013
Dickow Pump No cooling water needed for these hot-water pumps This company offers a wide range of hot-water pumps for temperatures up to 530°F and design pressures up to 1,160 psi. Due to high vapor pressures, standard mechanical seals cannot be used for higher temperatures. Although cooled mechanical seals are the easiest solution, the required cooling water adds additional costs. An alternative is a...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/Focus-on-Pumps_10286.html
March 1, 2013
The CS10 Clean Steam Separator with enhanced surface finish has been engineered to overcome problems associated with wet steam and ensures the correct quality of steam is supplied to the point of use...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/steam_traps/A-clean-steam-separator-for-pristene-processing_10274.html
March 1, 2013
  The 2040 digital position indicator uses a colored light signal, visible from a distance, to show the open or closed position of a valve. Four different color signals are used: open and closed by...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Valve-position-indicators-that-tell-more-than-just-on-or-off_10266.html
March 1, 2013
Introduced last month, these two intrinsically safe solenoid valves (photo) have Ex ia IIC T6 certification. The solenoid operators are designed for use on the 327 range of direct-operated solenoid...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Direct-acting-solenoid-valves-for-use-in-harsh-environments_10273.html
March 1, 2013
The Type 3738 electonic valve-position monitor can be used with on/off valves across a wide range of applications, and enables valve-position monitors to be configured at the push...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Configure-this-valve-position-monitor-with-the-push-of-a-button_10290.html
March 1, 2013
A new agitator-blade design for this company’s Double Planetary Mixer features two identical rectangular stirrers with upward rake fingers. Designed...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/mixing/A-mixer-equipped-with-special-finger-blades_10277.html
March 1, 2013
The NXT+ (photo) is a new alarm module that monitors the gas pressures at the inlets of the gas mixer and in the mixing gas vessel to ensure a constant process quality. These...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/mixing/A-new-alarm-module-for-gas-mixers_10284.html
February 1, 2013
Tygon S3 (safe, smart and sustainable) is said to be the first bio-based and phthalate-free tubing, and is the next generation of flexible tubing from this company for food and beverage...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/piping_and_tubing/Phthalate-free-tubing-for-food-and-beverage-applications_10154.html
February 1, 2013
Designed for flow chemistry applications, the patented Asia Syringe Pump is said to give users a tool for performing flow reactions not possible using HPLC pumps or...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/This-syringe-pump-delivers-continuous-smooth-flow_10151.html
February 1, 2013
Determining the proper preliminary size for centrifugal pumps during the initial stages of any pump-specification exercise requires numerous calculations and assumptions. This article reviews the steps needed to size centrifugal pumps during the early stages of a project, to support initial cost-estimation efforts. Such early pump-sizing efforts are important steps toward final pump selection and detailed...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/pumps/Sizing-Specifying-and-Selecting-Centrifugal-Pumps_10179.html
February 1, 2013
The new Hard Seat VHS Micro-Dispense Valve offers repeatable, non-contact dispensing of fluids in the nano- to microliter range. It features a...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/This-little-valve-has-a-zirconia-ball-and-seat_10143.html
February 1, 2013
  With the newly developed, high-precision 4090 pneumatic volume booster it is possible to amplify the air strength of the set point signal from the positioner to the actuator such that these control valves (depending on the nominal valve...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Control-valves-operate-four-times-faster-with-this-volume-booster_10167.html
February 1, 2013
Pressure-relief valves are widely and effectively used in situations where the pressure in a process vessel rises to above the vessel’s design-pressure rating. Proper relief-valve sizing is critical to plant and process safety to permit fluids sufficient flow area to exit the vessel. Sizing relief valves requires several equations for different flows (liquid flow, vapor flow and two-phase flow), as...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/valves/Sizing-Calculations-for-Pressure-Relief-Valves_10173.html
February 1, 2013
A company in Hamburg, Germany had been using a 20-m3 mixing silo with internal pipe auger for 20 years. By replacing the pipe auger (photo, left) with an open mixing...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/mixing/Slash-silo-mixing-times-with-this-open-mixing-screw_10159.html
January 1, 2013
An industrial compressed-air system is expected to supply air of defined quality, required pressure and desired quantity to all the plant air and instrument air consumers. With air being one of the most critical utilities of a chemical plant, a compressed air system should function efficiently and cost effectively. Therefore, designers should consider parameters such as air quality, air consumption and...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/compressors/Design-and-Specification-of-A-Compressed-Air-System_10085.html
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